Method and apparatus for monitoring the power of a laser beam
Abstract
A method for monitoring the power of a laser beam in real time is disclosed. At least one optical fiber is placed through the laser beam, where a portion of light from the laser beam is coupled into the optical fiber. The optical fiber may be maintained in a stationary position or moved periodically over a cross section of the laser beam to couple light from each area traversed. Light reaching both fiber ends is monitored according to frequency and processed to determine the power of the laser beam.
- Inventors:
-
- San Ramon, CA
- Livermore, CA
- Issue Date:
- Research Org.:
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
- OSTI Identifier:
- 870285
- Patent Number(s):
- 5490157
- Assignee:
- United States of Americas as represented by United States (Washington, DC)
- Patent Classifications (CPCs):
-
G - PHYSICS G01 - MEASURING G01K - MEASURING TEMPERATURE
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01S - DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT
- DOE Contract Number:
- W-7405-ENG-48
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- method; apparatus; monitoring; power; laser; beam; time; disclosed; optical; fiber; placed; portion; light; coupled; maintained; stationary; position; moved; periodically; section; couple; traversed; reaching; monitored; according; frequency; processed; determine; stationary position; laser beam; optical fiber; couple light; light reaching; /372/
Citation Formats
Paris, Robert D, and Hackel, Richard P. Method and apparatus for monitoring the power of a laser beam. United States: N. p., 1996.
Web.
Paris, Robert D, & Hackel, Richard P. Method and apparatus for monitoring the power of a laser beam. United States.
Paris, Robert D, and Hackel, Richard P. Mon .
"Method and apparatus for monitoring the power of a laser beam". United States. https://www.osti.gov/servlets/purl/870285.
@article{osti_870285,
title = {Method and apparatus for monitoring the power of a laser beam},
author = {Paris, Robert D and Hackel, Richard P},
abstractNote = {A method for monitoring the power of a laser beam in real time is disclosed. At least one optical fiber is placed through the laser beam, where a portion of light from the laser beam is coupled into the optical fiber. The optical fiber may be maintained in a stationary position or moved periodically over a cross section of the laser beam to couple light from each area traversed. Light reaching both fiber ends is monitored according to frequency and processed to determine the power of the laser beam.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1996},
month = {1}
}
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Works referenced in this record:
Scattering from side-illuminated clad glass fibers for determination of fiber parameters
journal, January 1974
- Watkins, L. S.
- Journal of the Optical Society of America, Vol. 64, Issue 6